Advertisements
Advertisements
Question
The optimum temperature for the process of photosynthesis is ______.
Options
53°C
45°C
25°C
35°C
Solution
The optimum temperature for the process of photosynthesis is 35°C.
Explanation:
At 35°C, the rate of photosynthesis peaks and then declines.
RELATED QUESTIONS
Look at leaves of the same plant on the shady side and compare it with the leaves on the sunny side. Or, compare the potted plants kept in the sunlight with those in the shade. Which of them has leaves that are darker green? Why?
Short answer question.
Why do leaves generally look green?
Short answer question.
Which four of the following are needed for photosynthesis in a leaf:
(i) Carbon dioxide:
(ii) Oxygen:
(iii) Nitrates :
(iv) Water:
(v) Chlorophyll:
(vi) Soil:
(vii) Light:
Suppose we compare the leaf with a factory, match the items in Column A with those in Column B.
Column A | Column B | ||
Left | Factory | ||
1 | Cells in the leaf | a | Raw materials |
2 | Chloroplast | b | Power |
3 | Sunlight | c | Machinery |
4 | Oxygen and water | d | End product |
5 | Carbon dioxide and water | e | By product |
6 | Glucose | f | Workroom |
State whether the following statement is True or False:
The chlorophyll enables the plants to use light energy.
Long answer question.
Do plants need oxygen? If so, what is its source?
Attempt any TWO of the following:
Describe ‘any two’ factors affecting the rate of photosynthesis.
When there is plenty of light and a higher concentration of O2, what kind of pathway does the plant undergo? Analyse the reasons.
Law of limiting factor is
According to Blackman, respiration of carbohydrates and fats is ______.